Your results seem comparable to mine before formatting. Unfortunately, I couldn't figure out what it could depend on. Other distributions don't seem to have these problems. In any case, I reformatted for other problems, which is not something I would recommend. Maybe by compiling with the option "--with-booby" or even better with "bld.sh", on the terminal we can check if there are deadlocks (I had a lot of them).--Cin mailing list Cin@lists.cinelerra-gg.org https://lists.cinelerra-gg.org/mailman/listinfo/cin